Water-based oil stain cleaning agent as well as preparation method and application thereof

Abstract

The invention relates to the technical field of cleaning agents, in particular to a water-based oil stain cleaning agent and a preparation method and application thereof. The homogeneous-phase stable water-based cleaning agent is formed by taking water as a main component and a special additive as a core complex liquid and matching with terpenoids, alcohol ether and a biodegradable surfactant, the cleaning agent is harmless to skin (pH value is 6.5-9.5), LD50 (rat oral) is greater than 17000mg / kg, the cleaning agent is not inflammable and explosive, and the cleaning agent is free of toxic and side effects. And the cleaning agent has quick and efficient cleaning power on various product oils, crude oils, various adhesives and waxiness.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning agents, and particularly relates to an aqueous oil stain cleaning agent, a preparation method thereof and an application thereof. Background Art

[0002] With the rapid development of industrialization, oil stain cleaning has become an indispensable part of many industries and daily household cleaning. However, traditional oil stain cleaning agents include three categories. One is organic solvent type (hydrocarbon solvents), one is strong base + surface active substances, and one is environmentally friendly surfactant products. Among them, solvent-based oil stain cleaning agents are flammable, strong base products are harmful to the skin and various coatings, and the cleaning effect of multiple surfactant compounded products on heavy oil stains and complex oil stains is limited. Therefore, developing an oil stain cleaning agent that is both safe, environmentally friendly and efficient has become an urgent need in the industry. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an aqueous oil stain cleaning agent, a preparation method thereof and an application thereof. The aqueous oil stain cleaning agent provided by the present invention is safe, environmentally friendly, has a pH within the neutral range, is harmless to skin health, and at the same time has excellent cleaning effects, and is applicable to the cleaning of various refined oils, crude oils, various adhesives, and wax scale.

[0004] In order to achieve the above-mentioned invention purpose, the present invention provides the following technical solutions:

[0005] The present invention provides an aqueous oil stain cleaning agent, which comprises the following components in terms of mass fraction:

[0006]

[0007] The biological agent is a compound of rhamnolipid and lipase;

[0008] The QX-330 additive is an aqueous solution of a chelating agent and a special surfactant; the chelating agent includes one or more of sodium citrate, trisodium methylglycine diacetate, and tetrasodium glutamate diacetate, and the special surfactant includes REWOQUAT CQ100S and / or methyl coco sulfate polyethylene glycol-5;

[0009] In the QX-330 additive, the mass ratio of the chelating agent to the special surfactant is 10-20:1, and the total mass content of the chelating agent and the special surfactant in the QX-330 additive is 2-20%.

[0010] Preferably, the terpene compound includes one or more of myrcene, ocimene, limonene, and dipentene.

[0011] Preferably, the biodegradable surfactant includes one or more of cocamidopropyl betaine, alkyl polyglucoside, and polyoxyethylene-polyoxypropylene block copolymer.

[0012] Preferably, the alcohol ether substances include one or more of ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, and propylene glycol ether.

[0013] Preferably, the mass ratio of rhamnolipid to lipase in the biological agent is 0.5-1:1.

[0014] Preferably, the preparation of the QX-330 additive includes: mixing a chelating agent and a surfactant with water at 58-62 °C to obtain the QX-330 additive.

[0015] Preferably, the water is deionized water.

[0016] Preferably, the pH value of the water-based oil stain cleaner is 6.5-9.5.

[0017] The present invention provides a preparation method of the water-based oil stain cleaner described in the above solution, including the following steps: mixing water with the QX-330 additive for the first stirring, adding a terpene compound and alcohol ether substances to the obtained mixture for the second stirring, and adding a biodegradable surfactant and a biological agent to the obtained mixture for the third stirring to obtain the water-based oil stain cleaner.

[0018] The present invention provides the application of the water-based oil stain cleaner described in the above solution or the water-based oil stain cleaner prepared by the preparation method described in the above solution in cleaning oil stains.

[0019] The present invention provides a water-based oil stain cleaner, which includes the following components by mass fraction: 1-5% of terpene compound, 0.1-10% of biodegradable surfactant, 1-15% of alcohol ether substances, 0.1-5% of biological agent, 3-30% of QX-330 additive, and the balance is water; the biological agent is a compound of rhamnolipid and lipase; the QX-330 additive is an aqueous solution of a chelating agent and a special surfactant; the chelating agent includes one or more of sodium citrate, MGDA, and tetrasodium glutamate diacetate, and the special surfactant includes REWOQUAT CQ100S and / or polyethylene glycol-5 methyl cocoate sulfate; the mass ratio of the chelating agent to the special surfactant in the QX-330 additive is 10-20:1, and the total mass content of the chelating agent and the special surfactant in the QX-330 additive is 2-20%.

[0020] The present invention uses water as the main component, a special additive (QX-330 additive) as the core compound liquid, and is formulated with terpene compounds, alcohol ethers, and biodegradable surfactants to form a homogeneous and stable water-based cleaning agent. The cleaning agent is harmless to the skin (pH value is 6.5 - 9.5), LD50 (oral administration to rats) > 17000 mg / kg, is not flammable or explosive, and has rapid and efficient cleaning power for various refined oils, crude oils, various adhesives, and waxes.

[0021] The water-based oil stain cleaning agent provided by the present invention adopts an environmentally friendly formula, does not contain ODS substances, does not damage the ozone layer, and is easily degradable in the natural environment. This cleaning agent not only causes no harm to the human body and the environment during use, but also has excellent cleaning effects. It can quickly penetrate into blind holes and fine gaps that are difficult to clean, strip and decompose the oil stains, and achieve efficient oil stain removal. After conducting cleaning and degreasing tests in areas such as the ground, oil guns, and equipment surfaces of gas stations, the water-based heavy oil stain cleaning agent provided by the present invention is superior to LX2000-005 (traditional solvent-based surfactant) and AVA-DG industrial oil stain cleaner (water-based) in terms of oil removal, glue removal, and removal of old oil stains, and its manufacturing cost is lower than that of the imported AVA-DG industrial oil stain cleaner which is also water-based.

[0022] The water-based oil stain cleaning agent provided by the present invention has high safety performance, is not easy to volatilize, explode, or catch fire, ensuring the safety of users. At the same time, its cost is relatively low, it is simple to prepare, and can be diluted with water for use, further reducing the cleaning cost. In addition, the cleaning operation of this cleaning agent is convenient, does not require special equipment, and has no special requirements for the storage environment.

[0023] The water-based oil stain cleaning agent provided by the present invention not only solves the problems existing in traditional oil stain cleaning agents, but also promotes the green development of the cleaning industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the cleaning effect diagram of the cleaning agent in Example 1 of the present invention for cleaning the oil stain on the test ground of a steel mill;

[0025] Figure 2 It is the cleaning effect diagram of the cleaning agent in Example 1 of the present invention for cleaning the oil stain on the mechanical equipment of a chemical plant;

[0026] Figure 3 It is the cleaning effect diagram of the cleaning agent in Example 2 of the present invention for cleaning the tire rubber print in a certain workshop;

[0027] Figure 4 It is the cleaning effect diagram of the cleaning agent in Example 3 of the present invention for wiping and cleaning the equipment in a gas station;

[0028] Figure 5 It is the cleaning effect comparison diagram of the hydrocarbon solvent in Comparative Example 4 and the cleaning agent in Example 2;

[0029] Figure 6 Cleaning effect of the cleaning agent of Embodiment 4 of the present invention on liquid crude oil samples;

[0030] Figure 7 Cleaning effect of the AVA-DG oil stain cleaning agent of Comparative Example 5 on liquid crude oil samples. Detailed implementation manners

[0031] The present invention provides an aqueous-based oil stain cleaning agent, which includes the following components by mass fraction:

[0032]

[0033] In the present invention, unless otherwise specified, the raw materials used are all well-known commercially available products in the art.

[0034] By mass percentage, the aqueous-based oil stain cleaning agent provided by the present invention includes 1-5% of terpenoid compounds, which can be 1%, 2%, 3%, 4% or 5% in specific embodiments. In the present invention, the terpenoid compounds preferably include one or more of myrcene, ocimene, limonene and dipentene. In the present invention, the terpenoid compounds are plant extracts. Selecting these as components of the oil removal cleaning agent enables the final product to have the function of cleaning plant oils or unsaturated oils.

[0035] By mass percentage, the aqueous-based oil stain cleaning agent provided by the present invention includes 0.1-10% of biodegradable surfactants, which can be 0.1%, 0.5%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9% or 10% in specific embodiments. In the present invention, the biodegradable surfactants preferably include one or more of cocamidopropyl betaine, alkyl polyglucoside and polyoxyethylene-polyoxypropylene block copolymer. In the present invention, the biodegradable surfactants preferably include one or more of cocamidopropyl betaine, alkyl polyglucoside and polyoxyethylene-polyoxypropylene block copolymer. In the present invention, the functions of the biodegradable surfactants are wetting, penetration and emulsification. They enhance the wetting and penetration ability for dirt cleaning, dissolve alcohol ether substances, terpenoid compounds and water, and finally form a homogeneous and stable product. Their biodegradability is good and they can assist in the dispersion of oil stains.

[0036] By mass percentage, the water-based oil and grease cleaning agent provided by the present invention comprises 1-15% of alcohol ether substances, which can be 1%, 3%, 5%, 8%, 10%, 12% or 15% in specific embodiments. In the present invention, the alcohol ether substances preferably include one or more of ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether and propylene glycol ether. In the present invention, the alcohol ether substances mainly act as substitutes for hydrocarbon solvent substances, are soluble in water, have low toxicity and strong functions of cleaning oil and grease.

[0037] By mass percentage, the water-based oil and grease cleaning agent provided by the present invention comprises 0.1-5% of biological agents, which can be 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5% in specific embodiments. In the present invention, the biological agent is preferably a compound of rhamnolipid and lipase, and the mass ratio of rhamnolipid to lipase in the biological agent is preferably 0.5-1:1, which can be 0.5:1, 0.6:1, 0.7:1, 0.8:1, 0.9:1 or 1:1 in specific embodiments. In the present invention, rhamnolipid and lipase are compounded, and the two can play a positive synergistic effect, improve the oil decomposition rate, improve the permeability, are environmentally friendly, assist in more thorough oily pollutants and reduce the subsequent treatment burden. The present invention has no special requirements for the compounding method of the biological agent, and direct mixing is sufficient.

[0038] By mass percentage, the water-based oil and grease cleaning agent provided by the present invention comprises 3-30% of QX-330 additive, which can be 3%, 5%, 10%, 15%, 20%, 25% or 30% in specific embodiments. In the present invention, the QX-330 additive is an aqueous solution of a chelating agent and a special surfactant; the chelating agent includes one or more of sodium citrate, trisodium methylglycinediacetate (MGDA) and tetrasodium glutamate diacetate (GLDA), and the special surfactant includes REWOQUAT CQ100S and / or methyl ester of polyethylene glycol-5 coco sulfate. In the present invention, the mass ratio of the chelating agent to the special surfactant in the QX-330 additive is 10-20:1, which can be 10:1, 12:1, 15:1, 18:1 or 20:1 in specific embodiments; the total mass content of the chelating agent and the special surfactant in the QX-330 additive is 2-20%, which can be 2%, 5%, 8%, 10%, 13%, 15%, 18% or 20% in specific embodiments.

[0039] In the present invention, the preparation of the QX-330 additive preferably includes: mixing a chelating agent and a surfactant with water at 58-62 °C to obtain the QX-330 additive. The mixing preferably includes: adding water to a container containing the chelating agent and the surfactant, and stirring until the chelating agent and the surfactant are completely dissolved. The present invention does not make special limitations on the rate and time of the stirring, as long as the chelating agent and the surfactant can be stirred until dissolved and mixed evenly.

[0040] In the present invention, the QX-330 additive is a self-made additive, which has super oil solubility and hydrophilicity, no streaks after washing, no liquid formation during the rinsing process, can accelerate the drying effect, repair the surface of fine scratches, and has excellent anti-deposition and antistatic properties.

[0041] The water-based oil stain cleaner provided by the present invention includes the balance of water. In the present invention, the water is preferably deionized water.

[0042] In the present invention, the pH value of the water-based oil stain cleaner is preferably 6.5-9.5, which will not cause harm to the skin.

[0043] The present invention takes water as the main component, a special additive (QX-330 additive) as the core composite liquid, and is formulated with terpene compounds, alcohol ethers, and biodegradable surfactants to form a homogeneous and stable water-based cleaner. The cleaner is harmless to the skin, LD50 (oral in rats) > 17000 mg / kg, is not flammable or explosive, and has fast and efficient cleaning power for various refined oils, crude oils, various adhesives, and waxes.

[0044] The present invention provides a preparation method of the water-based oil stain cleaner described in the above scheme, including the following steps: mixing water and the QX-330 additive for the first stirring, adding terpene compounds and alcohol ether substances to the obtained mixture for the second stirring, and adding biodegradable surfactants and biological agents to the obtained mixture for the third stirring to obtain the water-based oil stain cleaner.

[0045] In the present invention, the time of the first stirring is preferably 15-30 min; the time of the second stirring is preferably 10-20 min, and the time of the third stirring is preferably 20-40 min. The present invention does not make special limitations on the rate of each stirring, and the well-known stirring rate in the art can be adopted. The present invention adopts the above feeding sequence to be beneficial to maintaining the homogeneous stability of the final water-based oil stain cleaner.

[0046] In the present invention, the above steps are preferably carried out under normal temperature conditions.

[0047] The present invention provides the application of the water-based oil stain cleaner described in the above scheme or the water-based oil stain cleaner prepared by the preparation method described in the above scheme in cleaning oil stains.

[0048] The cleaning agent of the present invention is applicable to various oil stains, specifically various refined oils, crude oils, various adhesives, and wax scale.

[0049] The present invention has no special requirements for the cleaning method. It can be diluted with water for cleaning or can be used for cleaning without dilution. In the present invention, no special equipment is required for cleaning oil stains.

[0050] The following examples are used to illustrate in detail the water-based oil stain cleaning agent provided by the present invention, its preparation method and application, but they should not be construed as limiting the protection scope of the present invention.

[0051] In the following examples, the QX-330 additive is self-made by Beijing Blue Star Cleaning Co., Ltd., and the rest are purchased from the market.

[0052] Preparation process of QX-330: At 60 °C, take the chelating agent and surfactant and add them to a beaker according to the mass ratio, and add deionized water 5 times the mass of the chelating agent and surfactant. Stir with a stirrer at a speed of 1000 revolutions / min for 20 minutes. The formula is shown in Table 2.

[0053] Example 1

[0054] According to the formula in Table 1, at room temperature, first add the QX-330 additive to water and stir for 30 minutes. Then add the terpene compound and the alcohol ether substance and stir for 20 minutes. Then add the biodegradable surfactant and the biological preparation (a compound of rhamnolipid and lipase with a mass ratio of 1:1) and stir for 30 minutes. After mixing evenly, it is canned to obtain the water-based oil stain cleaning agent.

[0055] Examples 2 to 4

[0056] The preparation method is the same as that in Example 1, and the formula is shown in Table 1.

[0057] Comparative Example 1

[0058] The difference from Example 1 is only that the QX-330 additive is omitted.

[0059] Comparative Example 2

[0060] The difference from Example 1 is only that the biological preparation is rhamnolipid and the lipase is omitted.

[0061] Comparative Example 3

[0062] The difference from Example 1 is only that the biological preparation is lipase and the rhamnolipid is omitted.

[0063] Comparative Example 4

[0064] Commercially available hydrocarbon cleaning agent.

[0065] Comparative Example 5

[0066] Commercially available AVA-DG oil stain cleaner.

[0067] Table 1 Composition of the cleaners in the examples and comparative examples

[0068]

[0069]

[0070] Table 2 QX-330 formula

[0071]

[0072] Performance test:

[0073] Perform a performance test on the cleaner of Example 1. Refer to GB / T35759-2017 and use the pendulum washing method in the laboratory to test the cleaning power of artificial oil stains. The cleaning rate is 95%. Test the oil stains on the ground in a certain steel plant, and the cleaning rate is 100% (as Figure 1 shown).

[0074] Use the cleaner of Example 1 to clean the mechanical equipment in a chemical plant. The comparison diagrams before and after cleaning after being contaminated with oil stains are as shown in Figure 2 shown.

[0075] Perform a performance test on the cleaner of Example 2. Refer to GB / T35759-2017 and use the pendulum washing method in the laboratory to test the cleaning rate of artificial oil stains. The cleaning rate is 98%. Wipe the oil stains on the surface of the equipment in a certain chemical plant, and the cleaning rate is 100%; used for cleaning the tire rubber prints in a certain workshop, and it is completely cleaned (see Figure 3 ).

[0076] Perform a performance test on the cleaner of Example 3. Use the pendulum washing method in the laboratory to test the cleaning rate of artificial oil stains, and the cleaning rate is 98%; used for wiping and cleaning the equipment in an oil station, and the cleaning rate is 100%, clean without residue (see Figure 4 ).

[0077] Use the hydrocarbon solvent of Comparative Example 4 and the cleaner of Example 2 to clean artificial oil stains (the prepared oil stains and test methods in GB35759-2017 "Metal Cleaners"). The results are shown in Figure 5 . Figure 5 In, a is the cleaning effect of the cleaner of the present invention, and b is the cleaning effect of the hydrocarbon solvent. It can be seen from Figure 5 that there is no oil stain residue after cleaning with the cleaner provided by the present invention, and there is residue after cleaning with the hydrocarbon solvent.

[0078] Take a liquid crude oil sample, hang the oil on a test piece and age it, and then place the test piece in the cleaner of Example 4 to simulate pendulum washing. The crude oil can be completely stripped and dissolved in the cleaner of the present invention in 20 minutes (see Figure 6) It shows that the cleaning agent of the present invention has rapid and efficient cleaning power for crude oil. After cleaning with the AVA-DG oil stain cleaning agent of Comparative Example 5 for 20 minutes, a large amount of crude oil still remained on the test piece (see Figure 7 ).

[0079] Referring to GB / T35759-2017, the artificial oil stain cleaning rates of the cleaning agents of Comparative Examples 1 to 3 were tested by the pendulum washing method in the laboratory. The results showed that the cleaning rate of Comparative Example 1 was 50%, the cleaning rate of Comparative Example 2 was 90%, and the cleaning rate of Comparative Example 3 was 88%. It shows that the additive QX330 plays a key role in the components of the present invention, followed by rhamnolipid, and the bioenzyme plays an auxiliary role.

[0080] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A water-based oil cleaning agent, characterized in that: In terms of mass fraction, it includes the following components: The balance is water; The biological preparation is a compound of rhamnolipid and lipase; The QX-330 additive is an aqueous solution of a chelating agent and a special surfactant; the chelating agent includes one or more of sodium citrate, trisodium methylglycine diacetate, and tetrasodium glutamate diacetate, and the special surfactant includes REWOQUAT CQ100S and / or polyethylene glycol-5 coconut oil methyl sulfate; The mass ratio of the chelating agent to the special surfactant in the QX-330 additive is 10-20:1, and the total mass content of the chelating agent and the special surfactant in the QX-330 additive is 2-20%.

2. The water-based oil cleaning agent according to claim 1, characterized in that: The terpene compound includes one or more of myrcene, ocimene, limonene and dipentene.

3. The water-based oil cleaning agent according to claim 1, characterized in that: The biodegradable surfactant includes one or more of cocamidopropyl betaine, alkyl polyglucose anhydride and polyoxyethylene-polyoxypropylene block copolymer.

4. The water-based oil cleaning agent according to claim 1, characterized in that: The alcohol ether substances include one or more of ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether and propylene glycol ether.

5. The water-based oil cleaning agent according to claim 1, characterized in that: The mass ratio of rhamnolipid to lipase in the biological preparation is 0.5 to 1:

1.

6. The water-based oil cleaning agent according to claim 1, characterized in that: The preparation of the QX-330 additive comprises: mixing a chelating agent and a surfactant with water at 58-62° C. to obtain the QX-330 additive.

7. The water-based oil cleaning agent according to claim 1, characterized in that: The water is deionized water.

8. The water-based oil stain cleaning agent according to any one of claims 1 to 7, characterized in that: The pH value of the water-based oil stain cleaning agent is 6.5-9.

5.

9. The method for preparing the water-based oil cleaning agent according to any one of claims 1 to 8, comprising the following steps: The water and QX-330 additive are mixed and stirred for the first time, terpenoid compounds and alcohol ether substances are added to the obtained mixture and stirred for the second time, biodegradable surfactants and biological agents are added to the obtained mixture and stirred for the third time to obtain the water-based oil cleaning agent.

10. Use of the water-based oil stain cleaning agent according to any one of claims 1 to 8 or the water-based oil stain cleaning agent prepared by the preparation method according to claim 9 in cleaning oil stains.

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